𝙃𝙖𝙢𝙨𝙩𝙧𝙞𝙣𝙜 𝙀𝙘𝙘𝙚𝙣𝙩𝙧𝙞𝙘 𝙩𝙧𝙖𝙞𝙣𝙞𝙣𝙜 : 𝙗𝙚𝙛𝙤𝙧𝙚 𝙤𝙧 𝙖𝙛𝙩𝙚𝙧 𝙛𝙞𝙚𝙡𝙙/𝙛𝙤𝙤𝙩𝙗𝙖𝙡𝙡 𝙨𝙥𝙚𝙘𝙞𝙛𝙞𝙘 𝙩𝙧𝙖𝙞𝙣𝙞𝙣𝙜 ? 𝙏𝙝𝙚 𝙆𝙚𝙮 𝙦𝙪𝙚𝙨𝙩𝙞𝙤𝙣… 📝Important prior considerations ⚽️⛳️The size matters!! Neccesary analysis of posterior field training and conditioning & sociomotor dimensions of the drills (LSG > 200m2/ players and longitudinal > 8vs8 as a most demanded format in HSR/ sprint actions) 📉Fatigue vs eccentric: Is know that neuromuscular fatigue occurs after bouts of eccentric training (Nordic hamstring ) 🚦Peneation angle & force levels: Inmediately post eccentric bouts , increases of peneation angle (with decreases of force) occurs , with normalization after 1h post eccentric bout 🩸🦵🏻Vascularity index and blood flow (role of eccentric training in 🔋Recovery MD+ 1 training session) “Noticeable changes in muscles may be related to increased vascularity resulting from greater muscle activity during acute fatigue” 🥛🫗Effect of volume / training dose : fill or overflow the glass? High dose (6x 5reps) is shown to be responsible of decrements of force and increase acute fatigue , with the consequent hamstring injury risk during field training , being low dose the “better cost/benefit” option 🔑Conclusions: - always analysis of posterior field training (with large spaces or less 3 days to game, avoiding any hamstring eccentric stimulus before training ) - low dose is appropiate , avoiding fatigue and consequent injury risk - if ecc before training , 1h is show to be adequate to recover angle peneation and force levels - Vascularity index , blood flow after eccentric hamstring , other reason to include this type of training in MD+1 recovery sessions (always if next game + 4 days ) 📗 Reference Magdalena, P. G., Bartłomiej, B., Robert, T., Małgorzata, S., Hsing-Kuo, W., & Sebastian, K. (2024). Acute fatigue-induced alterations in hamstring muscle properties after repeated Nordic hamstring exercises. Science Progress, 107(2), 00368504241242934. – at Johore, Malaysia